Closet attachment.



E. E. DUFF.

CLOSET ATTACHMENT.

APPLICATION FILED DEC. 8. 1914- RENEWED"1ULY I6. 1917. 1,257,331.Patented Feb. 26, 1918.

15 "0' J 0 J 1% j Inventor r I Attorneys UNITED STATES p g EDWARD E.DUFF, OF SEATTLE, WASHINGTON, ASSIGNOR OF ONE-HALF" T0 FRED T.INGEESOLL, OF SEATTLE, W'ASHINGTON.

CLOSET ATTACHMENT.

Application. filed December 8, 1914, Serial No. 876,113.

To all whom it may concern:

Be it known that I, EDWARD E. DUFF, a citizen of the United States,residing at Seattle, in the county of King and State of Washington, haveinvented a new and useful Closet Attachment, of which the following is aspecification.

The present invention appertains to a closet attachment, and aims toprovide a novel and improved attachment for water closets, which isoperable to withdraw or remove the foul gases from the bowl or hopper,the present invention being an improvement over the closet attachmentdisclosed in my Patent Number 1,137,196 of April 27 1915.

It is the object of this invention, to provide a device of the natureindicated, which may be readily applied to the parts of a water closet,and which is so constructed, as to be operable automatically, when theseat is occupied.

It is also Within the scope of the invention, to improve the structuregenerally and in its details, to thereby enhance the utility andefliciency of the device, and whereby the device will be comparativelysimple and inexpensive in construction, as well as being practical andserviceable.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, can be made within thescope of what is claimed, without departing from the spirit of theinvention.

The invention is illustrated in its preferred embodiment in theaccompanying drawing, wherein Figure 1 is a side elevation of a watercloset illustrating the present attachment applied thereto.

Fig. 2 is a fragmental plan view thereof, with the seat in raisedposition.

Fig. 3 is an enlarged sectional view taken on the line 3-3 of Fig. 2,parts being shown in full.

Fig. 1 is an enlarged sectional detail taken on the line 41- of Fig. 2.

Fig. 5 is a fragmental detail illustrating the overflow pipe and fillertube.

Patented Feb. 26, 1918.

Renewed July 16, 1917. Serial No. 130,940.

In the drawing, there is delineated an ordinary bowl or latrine 1,having a pivoted or hinged seat 1 thereon, and which has its rim chamberconnected by means of the usual horizontally extending flushing pipe 2with the bottom of the flushing tank 3 disposed in rear of the bowl orhopper 1, the waste pipe 4 being attachedto the lower outlet of the bowl1, and .an upwardly extending water supply pipe 5 being connected to thebottom of the water tank 3 in the usual manner. The said parts are to bemerely taken as conventional, inasmuch as they vary, and inasmuch as thepresent device may be attached to various water closets.

In carrying out thepresent invention, a T-coupling 6 is interposed inthe water supply pipe 5, and a forwardly projecting pipe 7 is threadedinto the arm or branch of the coupling 6, and projects slightly beyondthe front side of the tank 3 from below the same. An inverted U-shapedpipe 8 has one limb attached to the forward end of the pipe or branch 7,and is disposed in front of the tank 3, and a water controlling valvestructure 9 is interposed in the crest or yoke portion of the pipe 8 forcontrol ling the passage of water from the supply pipe 5 throughthe-present device. The pipe 8 is preferably supported by means of abracket 10 embracing the crest or upper portion thereof and attached tothe front side of the tank.

An ejector or siphoning device 11 is attached to the lower end of theother limb of the pipe 8, and embodies an upright T-cou pling or casing12 having its upper end engaged to the lower end of the respective limbof the pipe 8, and a nipple or nozzle 13 having its butt end threadedwithin the coupling or casing 12 above its arm or branch 14 and havingits tip projecting downwardly past the said arm or branch, as clearlyseen in Fig. 3. The arm or branch 14 of the coupling or casing 12 of theejector has threaded thereinto, an eduction pipe 1 1 which is in turnthreaded or engaged through the top of the flushing pipe 2. A dischargepipe 16 is threaded or otherwise engaged into the lower end of thecoupling 12, and has its lower end engaged through the top of the wastepipe 1, the pipe 16 being preferably provided with a double bend or trap17 for preventing the foul gases from rising through the pipe 16 fromthe waste pipe 4.

The contrhlling valve structure 9 embodies a suitable casing 18 havingthe tubular extensions 19 providing the inlet and outlet thereof, andattached to the sections of the pipe 8. The casing 18 has an interiorpartition 20 provided with an opening 21 therein, and upper and lowerplugs or bonnets 22 and 23 are threadedly or removably engaged withinupper and lower openings provided in the casing 18 A valve stem 2-lpasses slidably through the lower plug or 08,1023, and the upper plug orcap is pro vided with a bore or socket. 25 receiving the upper end ofthe valve stem 24 to assist in properly guiding the valve stem and valve26 carried thereby, the valve'2x3 being seatable upon the partition 20over the opening 21 to close thepassage through the valve structure 9. Apacking gland 27 is thread ed'upon the lowerend' of the plug or bonnet23 to prevent theescape of water.

A nut 28 is threaded upon the lower end of the depending valve stem 24,and a coiled wire expansion'spring 29 is disposed upon the protrudingportion of the stem 24 and seats against the nut 28 and gland 27 carriedby the plug or bonnet 23, toyieldably depress the valve stem' 2st, fornormally seating the valve. Y

A mechanism is provided for automatically opening the valve 26, when theseat 1 of the bowl or hopper is occupied, and to this end, an operatingor actuating lever 30 is applied or fulcrumed to the bowl 1 and isarranged to be operated by the depression of the seat 1 to lift or raisethe valve 26 to open position. The lever 30'einbodies a bailshaped arm31 surrounding the forward portion of the bowl 1 adjacent its rim, clips32 being snapped over and straddling'the rim of the bowl 1 at the sidesthereof, and the ends of the bail-shaped arm 31 of the lever 30 beingprovided with eyes or bearings through which headed pivot or fulcrummembers 3e are engaged to take into the outer arms or endsof the clips32. Thus, the lever 30 is fulcrumed to the rin'i of the bowl 1 in asubstantialand convenient manher. It is to be noted that the clips 32are constructed of resilient or spring material, and are curved throughan are greater than 180, so that the clips will embrace and remain inplace upon the side portions of the bowl rim.

The intermediate or forward portion of the arm 31 is provided with aportion 35 curvedupwardly over the rim of the bowl 1 under the forwardor free end of the seat 1, and arranged to hold the seat 1, raisedslightly when unoccupied.

The other a m 36 of the lever 30 embodies an' extension of one end ofthe bail-shaped arm 31, and projecting rearwardlyfroin the correspondingside of the bowl 1 to a pointbelow the valve structure 9. The free orrear end of the arm 36 has an adjusting screw 37 threaded upwardlytherethrough and arranged to contact with or bear against the lower endof the valve stem or the nut 28 carried thereby, as seen in Fig. 3.

An air chamber 39 is preferably coni'iected to the T-coupling 6 of thewater supply pipe, to eliminate the pounding of the water when the flowof water is shut off.

it is also preferable to provide the upper or free end of the overflowpipe i0, which is usually provided within the flushing tank 3 incommunication with the flushing pipe 2, with a bend or downwardly curvedportion 41, so as to bring the upper or free end of the overflow pipe 40below the normal water lever within the flushing tank 3, to prevent theair from being drawn from within the flushing tank through the flushingpipe vhen the present device is in operation. The bend i1, however, willnot interfere with the usual function of the overflow pipe -10. Thefiller tube which is usually provided, extends through the bend orcurved portion 41 of the pipe 40, as clearly seen in F 5. Thefiuictionsof these parts are well known, and need not le described at length.

The bottom of the seat 1 is also preferably provided with suitablepacking 43 adapted to fit tightly upon the rim of the bowl 1 when theseat is depressed, to prevent the inflow of air between the seat and rimof thc'bowl when the present device is in operation.

In operation, when the closet or latrine is unoccupied, the valve 26will be closed under the influence ofthe spring 29, and the valve stem2% being depressed, will depress the arm 36 of the lever 30, to therebyraise the arm 31 to the position illustrated in Fig. 1, so that theupturned portion 35 of the arm 31 will raise the forward or free end ofthe seat 1 slightly. As soon as the seat 1 is occupied, it will bedepressed, to depress the arm 31 of the lever 30. and consequently raisethe arm 38 thcreor, so that the. valve stem 24 will be raised to openthe valve 26, and allow the water to flow from the supply pipe 5 throughthe pipe 8 into the siphoning device 11. The water being dischargedthrough the nipple or noZZle 13 downwardly into the discharge pipe 1 6,will tend to create a vacuum within the casing or coupling 12, and as aresult, the suction created will extend through the eduotion pipe 15 andflushing pipe 2 to the bowler latrine 1. Since the flushing pipe 2 isordinarily empty, the suction created by the ejector 12 will draw thefoul gases from the bowl or hopper 1, and the gases will be dischargedthrough the pipe 16 into the waste or discharge pipe 4. The withdrawalof gases from the bowl will continue as long as the valve 26 is open,and the valve will be held open as long as the seat 1 is depressed, butas soon as the latrine is vacated, the valve 26 will be reseated and theseat 1 of the bowl will be raised, under the tension of the spring 29.The present device will not interfere with the usual flushing andsiphonic action in the bowl or hopper.

The present device is comparatively simple and inexpensive inconstruction, and may be readily applied to various water closetswithout entailing great trouble or expense.

What is claimed is A water closet attachment embodying a pair of curvedspring clips to detachably engage the side portions of the rim of aCopies of this patent may be obtained for 111':-

bowl said clips each extending through an are greater than 180 so as toembrace and remain in place upon the bowl rim, and a bail-shaped armadapted to extend around the front of the bowl and having its endspivoted to the outer portions of said clips, the intermediate portion ofsaid arm having an upwardly projecting member adapted to be depressed bythe seat of the bowl, and one end of said arm being extended foroperating a valve.

In testimony that I claim the foregoing as my own I have hereto afiixedmy signature in the presence of two witnesses.

EDWARD E. DUFF. lVitnesses:

J. Hanwoon MoRRIs, J. L. BOOTH.

by addressing the Commissioner of letents,

Washington, I). C.

